/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2019 iText Group NV
 * Authors: Bruno Lowagie, Balder Van Camp, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
 * details. You should have received a copy of the GNU Affero General Public
 * License along with this program; if not, see http://www.gnu.org/licenses or
 * write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License, a
 * covered work must retain the producer line in every PDF that is created or
 * manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing a
 * commercial license. Buying such a license is mandatory as soon as you develop
 * commercial activities involving the iText software without disclosing the
 * source code of your own applications. These activities include: offering paid
 * services to customers as an ASP, serving PDFs on the fly in a web
 * application, shipping iText with a closed source product.
 *
 * For more information, please contact iText Software Corp. at this address:
 * sales@itextpdf.com
 */
 package com.itextpdf.tool.xml.parser.state;

import com.itextpdf.tool.xml.parser.XMLParser;

/**
 *
 */
public class ProcessingInstructionEncounteredState extends TagAttributeState {

    protected String name = null;

	/**
	 * @param parser the XMLParser
	 */
	public ProcessingInstructionEncounteredState(final XMLParser parser) {
		super(parser);
	}

	/*
	 * (non-Javadoc)
	 *
	 * @see com.itextpdf.tool.xml.parser.State#process(int)
	 */
    public void process(final char character) {
        String tag = this.parser.bufferToString();
        this.parser.memory().processingInstruction().append(character);
        if (name == null && Character.isWhitespace(character)) {
            if (Character.isWhitespace(character)) {
                name = tag;
                this.parser.memory().currentTag(name);
                this.parser.flush();
            } else if (character == '?') {
                this.parser.flush();
                this.parser.selectState().selfClosing();
            }
        } else {
            if (Character.isWhitespace(character)) {
                checkAttributeWithNoValue();
			    this.parser.flush();
            } else if (character == '?') {
                name = null;
                checkAttributeWithNoValue();
                this.parser.flush();
                this.parser.selectState().selfClosing();
            } else {
                this.parser.append(character);
            }
        }
    }
}
